Composition and function of tea
Tea contains many vitamins, such as vitamin B 1, B2, A, D, C, PP, E, etc. So drinking more tea can prolong life.
Contains a variety of minerals
Tea contains a variety of minerals, including 28 kinds of sodium, potassium, iron, copper, phosphorus and fluorine. Most of these minerals are necessary for human body. Therefore, drinking tea is one of the sources of essential elements for human body.
Purine base substance
Tea also contains caffeine, theanine, theobromine and other substances, which can excite the nerve center, improve labor efficiency, strengthen vascular function, induce diuresis and relax smooth muscle.
Phenolic derivatives
Can prevent scurvy, induce diuresis, resist radiation injury, treat migraine, and inhibit cancer. It also has antibacterial, anti-inflammatory, antidiarrheal, hypertension and arteriosclerosis prevention and treatment, and anti-aging functions.
Health care function of tea
Tea is a natural healthy drink. Studies have shown that drinking tea can quench thirst, help digestion, resolve phlegm, improve eyesight, induce diuresis, relieve boredom, relieve boredom, prevent cancer, refresh oneself and prolong life.
cancer prevention
Tea polyphenols can block the formation of carcinogenic nitroso compounds in human body. Green tea has the strongest blocking effect, and the blocking rate is above 90%. Followed by pressed tea, scented tea, oolong tea and black tea. Soaking 1g tea twice and drinking 150ml water each time can completely block the synthesis of nitroso compounds in human body.
protect against radiation
Polyphenols, fatty acids, vitamins C and A contained in tea have comprehensive radiation protection functions. Drinking tea can effectively prevent radiation-induced leukopenia. For cancer patients receiving radiotherapy, taking soluble tea can eliminate or alleviate the adverse reactions such as nausea, vomiting, loss of appetite and diarrhea after radiotherapy.
prevention of dental caries
Drinking tea, gargling with tea soup and brushing teeth can prevent dental caries. People who drink oolong tea regularly have a decrease of about 60% in the incidence of dental caries.
Prevention and treatment of cardiovascular diseases
Tea tannin can inhibit the proliferation of arterial smooth muscle cells, and obviously has the functions of anticoagulation, promoting fibrinolysis, preventing thrombosis, reducing capillary fragility and blood viscosity. Therefore, it has the functions of preventing hypertension and atherosclerosis, improving blood circulation and preventing thrombosis. Generally, 5 grams of green tea leaves a day can be soaked in water.
Prevention and treatment of intestinal diseases
Organic acids such as fatty acids and aromatic acids contained in tea have bactericidal effects and can be used to treat intestinal diseases such as bacillary dysentery, chronic ulcerative colitis and ileitis. 9 grams of tea, decocted.
Promote fluid production to quench thirst and relieve summer heat.
Because polyphenols, sugars, pectin, amino acids and so on in tea have chemical changes with saliva in the mouth, which can moisten the mouth and produce a cool feeling. Caffeine can regulate body temperature, so drinking tea can quench thirst and relieve summer heat. Even in hot summer, drinking hot tea can quench thirst better than other drinks, and the cooling time lasts longer.
Reduce fat and lose weight
Many compounds in tea, such as caffeine, inositol, folic acid, acid deficiency and aromatic substances, can enhance gastric juice secretion and regulate fat metabolism, especially oolong tea has a good decomposition effect on protein and fat, so drinking tea can lose weight. Generally, 5 grams of tea leaves are soaked in water every day, and it will take effect after more than one month.
Tea tree health after meals
Tea is rich in alkaline substances, and its functions of decontamination, deodorization and degreasing are far stronger than ordinary water. After three meals a day, especially after eating fish, meat and wine, gargling with tea can clean your mouth and remove fishy smell and boredom. Tea can also kill some bacteria in the mouth and prevent oral inflammation. Tea can also deodorize, especially wine, cigarettes and garlic.
Refreshing the mind, benefiting thinking and relieving fatigue.
Caffeine in tea can excite the central nervous system, make the mind clear and quick-thinking, accelerate blood circulation, activate bones and muscles, promote metabolism and relieve fatigue.
Longevity and anti-aging
Studies have shown that tannins contained in green tea control lipid peroxides produced in human body and prevent aging. So drinking tea often can prolong life.